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authoreregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2019-01-20 20:38:57 +0000
committereregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2019-01-20 20:38:57 +0000
commit6204e0804b24f1675b49d5880da014411bcfb831 (patch)
treece6c00bf078fc416936ca3cdc972b9b3c1c78dae /spec/ruby/language/variables_spec.rb
parent58573c33e4720315ed27491e31dcc22892e1ce95 (diff)
downloadruby-6204e0804b24f1675b49d5880da014411bcfb831.tar.gz
Update to ruby/spec@35a9fba
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66888 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'spec/ruby/language/variables_spec.rb')
-rw-r--r--spec/ruby/language/variables_spec.rb28
1 files changed, 28 insertions, 0 deletions
diff --git a/spec/ruby/language/variables_spec.rb b/spec/ruby/language/variables_spec.rb
index 4c4599bec4..640c9e49ac 100644
--- a/spec/ruby/language/variables_spec.rb
+++ b/spec/ruby/language/variables_spec.rb
@@ -758,3 +758,31 @@ describe "A local variable assigned only within a conditional block" do
end
end
end
+
+describe 'Local variable shadowing' do
+ ruby_version_is ""..."2.6" do
+ it "leads to warning in verbose mode" do
+ -> do
+ eval <<-CODE
+ a = [1, 2, 3]
+ a.each { |a| a = 3 }
+ CODE
+ end.should complain(/shadowing outer local variable/, verbose: true)
+ end
+ end
+
+ ruby_version_is "2.6" do
+ it "does not warn in verbose mode" do
+ result = nil
+
+ -> do
+ eval <<-CODE
+ a = [1, 2, 3]
+ result = a.map { |a| a = 3 }
+ CODE
+ end.should_not complain(verbose: true)
+
+ result.should == [3, 3, 3]
+ end
+ end
+end